Skip to content
Celebrating over 50 years of Trusted Marine Service
Over 50 years of Trusted Marine Service

Ancor Adhesive Lined Heat Shrink Tubing Assorted 3/4" x 3" (Yellow, White, Black, Green)

Original price $22.79 - Original price $22.79
Original price
$22.79
$22.79 - $22.79
Current price $22.79
Item locally warehoused

Free returns on all eligible orders

You have 30 days to request a return. All sale items are final sale.

Use this Ancor Adhesive Lined Heat Shrink Tubing Assortment to insulate and help seal marine electrical connections. The adhesive lining is activated with heat to help form a tight, moisture-resistant barrier around wiring.

Key Features

  • Assorted colors: Yellow, White, Black, Green
  • Adhesive lined heat shrink helps create a sealed covering when heat is applied
  • Marine Grade™ for marine electrical wiring and connection protection
  • 3/4" diameter (pre-shrink) x 3" length sections
  • Shrink ratio listed as 3:1 (shrinks to approximately 1/3 original I.D.)

Intended Use

  • Marine electrical wiring insulation
  • Protecting and sealing wire splices and connection points
  • Strain relief and abrasion protection over heat-shrinkable terminals and connections

Product Details

  • Brand: Ancor
  • Product type: Adhesive Lined Heat Shrink Tubing (Assortment Packs)
  • Assortment/SKU: 639-306503
  • Section size: 3/4" x 3"
  • Colors included: Yellow, White, Black, Green
  • Shrink ratio: 3:1
  • 4-pack (assorted colors)
  • Barcode/UPC (variant): 091887306538

Parts Desk Insights

Best Use Case: Great for sealing and insulating marine wire connections after crimping—apply heat evenly so the tubing shrinks fully and the adhesive lining fully melts to form the seal.

Common Issues: Common pitfalls include under-heating (seal may not fully form), overheating beyond what’s needed (can degrade the tubing), and ensuring the wire strands and connection surfaces are properly prepped so the tubing can seat evenly.

Related Products & Accessories

Browse related Heat Shrink & Adhesive Lined to complete the installation.

Shipping information

In-stock and OEM parts: ship same or next business day.

Locally warehoused items: ship within 1-3 business days.

Special-order items: timeline confirmed after order.

Returns & warranty

Returns & Satisfaction Guarantee

We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.

If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.

To qualify for a return:


  • Item must be in new, unused condition

  • Product must be in its original packaging

  • All parts, components, hardware, manuals, and accessories must be included

  • Packaging must be undamaged and suitable for resale

Important:

Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.

We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.

For return authorization, please contact our support team before shipping anything back.

Free Shipping

When you spend $150 or more

Here to Help

Get in touch with us

Store Pickup

Pick up your order yourself, for free

Easy Exchanges

Return or exchange within 30 days